CVE-2016-3157 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
Source:
MITRE
Description Last Modified:
07/13/2016
View Analysis Description
Analysis Description
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows guest local OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
Source:
MITRE
Description Last Modified:
04/13/2016
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.8 HIGH
Vector:
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
(V3 legend)
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
7.2 HIGH
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
(V2 legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.9
Access Vector (AV):
Local
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Complete
Integrity (I):
Complete
Availability (A):
Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because
they may have information that would be of interest to you. No inferences should be drawn on account of other sites
being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose.
NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further,
NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about
this page to nvd@nist.gov.
Technical Details
Vulnerability Type
(View All)
- Permissions, Privileges, and Access Control (CWE-264)
Change History
11 change records found
- show changes
CVE Modified by MITRE -
12/2/2016 10:26:39 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securitytracker.com/id/1035308 [No Types Assigned] |
CVE Modified by MITRE -
11/30/2016 10:09:52 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2968-1 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2968-2 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2969-1 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2970-1 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2971-1 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2971-2 [No Types Assigned] |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2971-3 [No Types Assigned] |
CVE Modified by MITRE -
11/28/2016 3:06:36 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.debian.org/security/2016/dsa-3607 [No Types Assigned] |
| Added |
Reference |
|
http://www.securityfocus.com/bid/84594 [No Types Assigned] |
CVE Modified by Source -
10/3/2016 10:08:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html |
Modified Analysis -
7/15/2016 11:47:07 AM
| Action |
Type |
Old Value |
New Value |
| Changed |
CPE Configuration |
Configuration 1
OR
*cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* |
Configuration 1
OR
*cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
Configuration 2
OR
*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
CVE Translated -
7/14/2016 6:45:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Translation |
|
La función __switch_to en arch/x86/kernel/process_64.c en el kernel de Linux no sustituye correctamente el conmutador de contexto IOPL en invitados 64-bit PV Xen, lo que permite a usuarios locales del SO invitado obtener privilegios, provocar una denegación de servicio (caída del SO invitado), u obtener información sensible aprovechando el puerto de acceso I/O. |
| Removed |
Translation |
La función __switch_to en arch/x86/kernel/process_64.c en el kernel de Linux no sustituye correctamente el conmutador de contexto IOPL en invitados 64-bit PV Xen, lo que permite a usuarios del SO locales invitados obtener privilegios, provocar una denegación de servicio (caída de SO invitado) u obtener información sensible aprovechando el puerto de acceso I/O. |
|
CVE Modified by Source -
7/13/2016 10:00:38 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows guest local OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. |
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2996-1 |
| Added |
Reference |
|
http://www.ubuntu.com/usn/USN-2997-1 |
Modified Analysis -
4/25/2016 8:40:40 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
Configuration 1
OR
*cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:L/AC:L/Au:N/C:C/I:C/A:C) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-264 |
| Changed |
Reference Type |
http://xenbits.xen.org/xsa/advisory-171.html No Types Assigned |
http://xenbits.xen.org/xsa/advisory-171.html Advisory, Patch |
Initial CVE Analysis -
4/14/2016 12:53:02 PM
Initial CVE Analysis -
4/14/2016 12:46:36 PM
CVE Modified by Source -
4/13/2016 9:59:10 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. |
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows guest local OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. |
Quick Info
CVE Dictionary Entry:
CVE-2016-3157
NVD Published Date:
04/12/2016
NVD Last Modified:
12/02/2016
|